Just for the record, there is no right or wrong answers to these types of questions concerning budgets and all. Only what's right for you.
- Is the 3k for motor and tranny?
- Is 400 hp just a fun number to say? or is there a reason you want 400 hp (do you know what 400 hp is like?) Will 400 hp be enough for your goals?
- Are you trying to be quick in the 1/4 mile? or want to cruise 80 mph all day across Nebraska?
If you can answer these questions, folks here will point you in the direction for your goals :)